You'll need the following dependencies:
- cmake
- gobject-introspection
- libglib2.0-dev
- libgranite-dev
- libindicator3-dev
- libwingpanel-2.0-dev
- valac
It's recommended to create a clean build environment
mkdir build
cd build/
Run cmake to configure the build environment and then make to build
cmake -DCMAKE_INSTALL_PREFIX=/usr ..
make
To install, use make install
sudo make install